Concur with many of these on the drama shows.
Sopranos, Breaking Bad, The Wire, all stand out for me, over many seasons too.
Band of Brothers = amazing.
Also loved the first 3 seasons of Homeland, though can't see the next one(s) being any good.
And loving True Detective right now.

British drama, love Luther, of course, plus The Tunnel (UK version of The Bridge), plus really enjoyed Broadchurch.

For Comedy shows, it's all about Louie for me. Check out Louie CK, if you not seen him already, brilliant stand-up comic, and the show is awesome.
the new season starts very soon on Fox (next month). But i would highly recommend watching the first 3 before